George anson sturges



GEORGE ANsoN sTURGEs, or DELHI, NEW YORK.

Letters Patent No. 89,356, dated Apr/il 27, 1869.

, IIWPRO'VEMNT IN SASH-HOLDER.

The Schedule referred to in these Letters Patent and making part of thesame To all whom it may conce/m 'Be it known that I, GEORGE AnsonSTURGns, of

Delhi, in the county of Delaware, and State 'of New York, haveinvented anew and useful Improvement in Stops for Window-Sashes; and I do herebydeclare the following to be a clear and exact description thereof',reference being hadto the accompanying drawings, and to the letters ofreference marked thereon, making a part of this specification, in which-Figure 1 is a perspective drawing of my improved window-sash stop,showing the manner in which it is applied to the window-sashes. y

Figure 2 is a longitudinal section of the same, show ing moreparticularly the manner of fastening it to the under sash.

Like letters of reference indicate like parts.

The nature of my invention consists in constructing a window-sash stopin such a manner that both the upper and under sashes can be upheld atany point in the window-frame by the same stop,'which is fastened to thetop of the under sash only.

To obtain this result, I make a metallic plate, A, which can be eitherstruck out by means of dies, or cast, as may be desired.

This plate is provided with two pairs of ears, or

standards, u. a, and a' a', the use of which is to act as hinge-p'ostsfor the elliptic-shaped stops B B', .which work in them upon the pins bb'.

One pair of those ears is placed with its axial line at right angleswith the axial line of the plate. The axial line of the other paircoincides with that of the plate.

The planes of both pairs of ears are perpendicular to the plane of theplate A.

One end of the plate A is turned down at right angles with the body ofthe plate, as shown at G, iig. 2, for the purpose of the better securingtheplate to the window-sash.'

Within the standards (or ears) a a, a a', are tw elliptic-shaped cams,or stops, working on pins b b'.

The cams are made of India rubber, vulcanized to the requisite degree ofhardness, which is just sniciently soft to spring a very little, thebetter to crowd on the wood of the window-frame and upper sash, and alsoby its spring to keep the sashes close to the frame of the window, andprevent them from rattling.

The cam B, working within the ears a' a upon the pin b, is made in theform of an` ellipse, and is hung exactly in the centre, with the planeof the ellipse coincident with the plane'of the lower sash, so that oneend of` the elliptic rubber stop will act (against the window-frame) tokeep the sash from being pushed up when the sash is close down; and theother end of the ellipse will act as a stop to prevent the sash fromfalling down, when the same is pushed up to admit air.

The elliptic cam B', working within the ears a' a upon the pin l1', ishung in the focus of one of the endswith the plane of the uellipse atright angles with the plane of the sashes, so that the upper end of theelliptic stop may press against the upper sash, and support it at anydesired point in the Window-frame, whether the under sash be open orshut.

Secured by rivets to the sides of each of the elliptic cams, are metalplates d d, d el', (one pair of plates to each cani,) of the sameelliptic shape as the cams, but a little smaller, the use of which is tosupport the'rubber, and prevent it from being forced toofar back on thehinge-pins, should much force be applied to the sashes, with theintention'of forcing them open.

The metal knobs e e' may be applied, one to each cam, for the purpose ofassisting (by their weight) the cams B B' to drop the more readily intoor out of lock, as may be desired, and also to afford a better hold tothe fingers when altering the position of the cams.

The method of applying and operating my improved sash-stop is asfollows:

The plate A is placed upon the top of the under sash, in the positionshown in iig. 1, a seat being cut in the edge of the sash to receive thepart O, as shown in fig. 2. The plate is then secured to the sash bymeans of the screws ff', and the sasbesbeing properly placed in thewindow-frame the stop is ready for use.

When it is desired to lock the under sash down, the top of the cam B ispressed against the frame of the window, in which position the centre ofthe elliptic cam being some distance out from and under the point ofcontact, anyl force applied to the sash, with the intention of raisingit, only tends to press thestop firmer against the window-frame, theretaining power of the stop being further increased by the nature of thematerial used for the cams, which, being of rubber, made to yield a verylittle, crowds and resists more and more, as the strain upon themincreases. Y

Should it be desirable to raise the sash, the top of the cam is turnedover until the transverse axis of the ellipse is perpendicular, in whichposit-ion, as the cam does not touch the window-frame, the sash can beeasily raised. v

To support the under sash at any desired height in the Window-frame, thetop of the cam B is turned over until the bottom part of the ellipticcam cornes in contact with the window-frame, in which position it willsecurely hold the sash at any height it may be placed at in thewindow-frame.

'lo support the upper sash at any desired point in the window-frame,turn back the top of the cani B', and lower or raise the sash t'o thepoint desired, when the cam, being again placed against the sash, willheld it securely at the place desired. l

rI he advantages of this improvement are, its simplieity, durability,and efficiency. It acts as a stop for both sashes, yet there is nothingcomplicated about it to get out of order. It is made of material whichwill last for a considerable time in constant use without Wearing awaythe window-frame. It securely holds both sashes at any point in .thewindow-frame desired, and at night the upper sash may be lowered alittlefor air, while the under sash remains closed and locked, without anydanger of the under sash being raised, or the upper sash being loweredfrom without.

I am aware that rubber cams havebeen used for fastening Window-sash,which cams I do not elaim; but

What I do claim, is-

The arrangement and applieation of the above-described device, as andfor the purpose specified.

GEORGE ANSON STURGES.

Witnesses H. J. ENGLAND, SOLOMON RICE.l

